US20140367209A1 - Wheel brake for an aircraft, in particular for a helicopter - Google Patents

Wheel brake for an aircraft, in particular for a helicopter Download PDF

Info

Publication number
US20140367209A1
US20140367209A1 US14/305,929 US201414305929A US2014367209A1 US 20140367209 A1 US20140367209 A1 US 20140367209A1 US 201414305929 A US201414305929 A US 201414305929A US 2014367209 A1 US2014367209 A1 US 2014367209A1
Authority
US
United States
Prior art keywords
brake
pad
jaw
stationary
disk
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Abandoned
Application number
US14/305,929
Other languages
English (en)
Inventor
Xavier Delayre
Jérémy HARDY
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Safran Landing Systems SAS
Original Assignee
Messier Bugatti Dowty SA
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Messier Bugatti Dowty SA filed Critical Messier Bugatti Dowty SA
Assigned to MESSIER-BUGATTI-DOWTY reassignment MESSIER-BUGATTI-DOWTY ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS). Assignors: DELAYRE, XAVIER, HARDY, JEREMY
Publication of US20140367209A1 publication Critical patent/US20140367209A1/en
Abandoned legal-status Critical Current

Links

Images

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16D—COUPLINGS FOR TRANSMITTING ROTATION; CLUTCHES; BRAKES
    • F16D55/00—Brakes with substantially-radial braking surfaces pressed together in axial direction, e.g. disc brakes
    • F16D55/02—Brakes with substantially-radial braking surfaces pressed together in axial direction, e.g. disc brakes with axially-movable discs or pads pressed against axially-located rotating members
    • F16D55/22—Brakes with substantially-radial braking surfaces pressed together in axial direction, e.g. disc brakes with axially-movable discs or pads pressed against axially-located rotating members by clamping an axially-located rotating disc between movable braking members, e.g. movable brake discs or brake pads
    • F16D55/224—Brakes with substantially-radial braking surfaces pressed together in axial direction, e.g. disc brakes with axially-movable discs or pads pressed against axially-located rotating members by clamping an axially-located rotating disc between movable braking members, e.g. movable brake discs or brake pads with a common actuating member for the braking members
    • F16D55/225—Brakes with substantially-radial braking surfaces pressed together in axial direction, e.g. disc brakes with axially-movable discs or pads pressed against axially-located rotating members by clamping an axially-located rotating disc between movable braking members, e.g. movable brake discs or brake pads with a common actuating member for the braking members the braking members being brake pads
    • F16D55/226—Brakes with substantially-radial braking surfaces pressed together in axial direction, e.g. disc brakes with axially-movable discs or pads pressed against axially-located rotating members by clamping an axially-located rotating disc between movable braking members, e.g. movable brake discs or brake pads with a common actuating member for the braking members the braking members being brake pads in which the common actuating member is moved axially, e.g. floating caliper disc brakes
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16D—COUPLINGS FOR TRANSMITTING ROTATION; CLUTCHES; BRAKES
    • F16D65/00—Parts or details
    • F16D65/02—Braking members; Mounting thereof
    • F16D65/04—Bands, shoes or pads; Pivots or supporting members therefor
    • F16D65/092—Bands, shoes or pads; Pivots or supporting members therefor for axially-engaging brakes, e.g. disc brakes
    • F16D65/095—Pivots or supporting members therefor
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B64—AIRCRAFT; AVIATION; COSMONAUTICS
    • B64C—AEROPLANES; HELICOPTERS
    • B64C25/00—Alighting gear
    • B64C25/32—Alighting gear characterised by elements which contact the ground or similar surface 
    • B64C25/42—Arrangement or adaptation of brakes
    • B64C25/44—Actuating mechanisms
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16D—COUPLINGS FOR TRANSMITTING ROTATION; CLUTCHES; BRAKES
    • F16D65/00—Parts or details
    • F16D65/02—Braking members; Mounting thereof
    • F16D65/04—Bands, shoes or pads; Pivots or supporting members therefor
    • F16D65/092—Bands, shoes or pads; Pivots or supporting members therefor for axially-engaging brakes, e.g. disc brakes
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16D—COUPLINGS FOR TRANSMITTING ROTATION; CLUTCHES; BRAKES
    • F16D69/00—Friction linings; Attachment thereof; Selection of coacting friction substances or surfaces
    • F16D69/04—Attachment of linings
    • F16D69/0408—Attachment of linings specially adapted for plane linings
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16D—COUPLINGS FOR TRANSMITTING ROTATION; CLUTCHES; BRAKES
    • F16D55/00—Brakes with substantially-radial braking surfaces pressed together in axial direction, e.g. disc brakes
    • F16D2055/0004—Parts or details of disc brakes
    • F16D2055/005—Brakes straddling an annular brake disc radially internally
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16D—COUPLINGS FOR TRANSMITTING ROTATION; CLUTCHES; BRAKES
    • F16D69/00—Friction linings; Attachment thereof; Selection of coacting friction substances or surfaces
    • F16D69/04—Attachment of linings
    • F16D2069/0425—Attachment methods or devices
    • F16D2069/0433—Connecting elements not integral with the braking member, e.g. bolts, rivets
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16D—COUPLINGS FOR TRANSMITTING ROTATION; CLUTCHES; BRAKES
    • F16D69/00—Friction linings; Attachment thereof; Selection of coacting friction substances or surfaces
    • F16D69/04—Attachment of linings
    • F16D2069/0425—Attachment methods or devices
    • F16D2069/0441—Mechanical interlocking, e.g. roughened lining carrier, mating profiles on friction material and lining carrier

Definitions

  • the invention relates to a wheel brake for an aircraft, in particular for a helicopter.
  • brakes comprising a stack of disks, half of which are stators and the other half of which are rotors that rotate together with the wheel.
  • Brake actuators serve to press the disks against one another in order to generate a braking torque that opposes free rotation of the wheel on its axle.
  • a brake having a single disk that rotates with the wheel, the disk being associated with calipers that are placed astride the disk and that have jaws receiving two brake pads, one of which is movably mounted in order to be capable of clamping the disk between the two pads under drive from a braking actuator.
  • the calipers are placed astride the disk on its inside. Nevertheless, in that type of brake, the pads are held against the two jaws of the calipers via their ends, thereby requiring the jaw to be of a certain size in the transverse direction, even though it needs to pass through the inside of the disk while the brake is being mounted. Nevertheless, in particularly demanding applications, where the diameter of the central orifice in the disk is small, this transverse size makes it difficult to mount the brake, or makes it necessary to use brake pads of small surface area.
  • An object of the invention is to provide a brake with calipers that are mounted through the inside of the disk and that is adapted to using disks of small diameter.
  • the invention provides a brake for an aircraft wheel comprising firstly calipers with an outer jaw receiving a stationary brake pad and an inner jaw that is movable under drive from a braking actuator and that receives a movable brake pad, and secondly a disk that extends between the brake pads and that includes means for constraining it to move in rotation with the wheel.
  • at least one of the brake pads includes a protrusion projecting from a rear face of the pad to be received in a matching receptacle of the associated jaw and serving both to position the pad on the jaw and to transmit braking forces from the stationary pad to the associated jaw.
  • FIG. 1 is a perspective view of a brake with its calipers and its disk in place on helicopter landing gear, seen from the disk side, the wheel being omitted for greater clarity;
  • FIG. 2 is a perspective view of the FIG. 1 brake seen from behind;
  • FIG. 3 is a side view of the FIG. 1 calipers
  • FIG. 4 is a face view of the FIG. 1 calipers in section on line D-D of FIG. 3 ;
  • FIG. 5 is a side view of the FIG. 1 brake partially in section through the stationary brake pad
  • FIG. 6 is a view analogous to that of FIG. 5 in a second particular embodiment of the invention.
  • the brake 100 of the invention is for installing on aircraft landing gear, and in the figures there can be seen the bottom arm 1 of the landing gear that carries an axle 2 .
  • the axle 2 has a collar 3 on which the brake is fitted by means of two bolts 4 .
  • the brake 100 has calipers 101 having two lugs 102 enabling the brake to be fastened to the collar 3 .
  • the calipers 101 have an outer jaw 103 and a support 104 that receives a brake actuator 105 , in this example an electromechanical actuator, that is fitted on the support 104 by means of screws 106 .
  • the brake actuator 105 has a pusher, at the end of which a movable internal jaw (not shown) receives a movable brake pad 107 that is pushed by the pusher to approach a stationary brake pad 108 carried by the outer jaw 103 .
  • a disk 109 extends between the brake pads 107 and 108 so as to be capable of being clamped between the pads under drive from the actuator 105 .
  • the disk has tenons 110 that are received in mortises of matching shape in the rim of the wheel so as to be constrained to move in rotation therewith, while being free to move axially. The disk is thus said to be floatingly mounted.
  • the brake pads 107 and 108 are identical in shape and have spacers 111 that project laterally from the pads in order to be received in corresponding housings 112 in the associated jaw (visible in FIG. 4 ). Lateral braking forces are transmitted by the spacers 111 from the movable pad 107 to the support 104 such that the actuator 105 is subjected to axial braking forces only.
  • the outer jaw 103 receives a central peg 120 that is received half and half between the outer jaw 103 and the stationary pad 108 . Braking forces are transmitted by the central peg 120 from the stationary pad 108 to the outer jaw 103 .
  • the central peg 120 forms a protrusion projecting from a rear face of the pad 108 to be received in a receptacle 123 that is formed directly in the outer jaw 103 in this example.
  • the central peg 120 is provided with a centering stud 121 that extends through an open orifice in the outer jaw 103 so as to project out therefrom, thereby making it possible to verify visually that the central peg 120 is present.
  • a fastener pin 122 extends between the stationary pad 108 and the central peg 120 in order to secure these two elements together.
  • the central peg 120 and the stationary pad 108 presents facing recesses for receiving said fastener pin 122 . Since the brake pads 107 and 108 are identical, the recess in question can be seen in the movable pad 107 as shown in FIG. 4 . It should be observed that the stationary pad 108 also has spacers 111 , that are of no use in this example.
  • a central peg 120 for transmitting forces between the stationary pad 108 and the outer jaw 103 serves to reduce the lateral size of the outer jaw 103 , since there is no longer any need for it to present lateral extensions for receiving housings 112 suitable for receiving the spacers 107 .
  • the outline of the outer jaw 103 may follow exactly the outline of the stationary pad 108 so as to provide it with a sufficient reaction surface, while limiting the lateral size of the outer jaw 103 . It can also be seen that the spacers 111 of the stationary pad 108 project (a little) from the outer jaw 103 .
  • the lateral size of the outer jaw 103 is limited to that which is strictly necessary, thereby enabling it to pass through the central orifice of a disk of smaller size than the size of the disk commonly used in this kind of brake.
  • the wheel In order to disassemble such a brake, the wheel is removed first, and then the bolts 4 that hold the calipers on the landing gear are loosened. The calipers are removed together with the disk 109 , and then once they have been taken away from the landing gear, the disk is separated from the calipers by causing the outer jaw 103 to pass through the central orifice in the disk 109 . By limiting the lateral size of the outer jaw 103 it becomes possible to pass it through a central orifice of small size.
  • the brake pads 207 , 208 both present central protrusions 215 , 216 formed integrally with the pads and projecting from the rear faces of the pads in order to be received in receptacles 217 , 218 formed respectively in the outer jaw 203 and the inner jaw 210 .
  • the stationary pad 208 is secured to the outer jaw 203 by means of a bolt 219 , while the movable pad 207 is secured on the inner jaw 210 by means of a fastener pin 220 .

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Aviation & Aerospace Engineering (AREA)
  • Braking Arrangements (AREA)
US14/305,929 2013-06-17 2014-06-16 Wheel brake for an aircraft, in particular for a helicopter Abandoned US20140367209A1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR1355666A FR3007096B1 (fr) 2013-06-17 2013-06-17 Frein pour roue d'aeronef, en particulier pour un helicoptere.
FR1355666 2013-06-17

Publications (1)

Publication Number Publication Date
US20140367209A1 true US20140367209A1 (en) 2014-12-18

Family

ID=49003905

Family Applications (1)

Application Number Title Priority Date Filing Date
US14/305,929 Abandoned US20140367209A1 (en) 2013-06-17 2014-06-16 Wheel brake for an aircraft, in particular for a helicopter

Country Status (3)

Country Link
US (1) US20140367209A1 (fr)
EP (1) EP2816251B1 (fr)
FR (1) FR3007096B1 (fr)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP3153735A1 (fr) * 2015-10-08 2017-04-12 Israel Aerospace Industries Ltd. Système de frein additionnel
US11035426B2 (en) 2018-06-12 2021-06-15 Airbus Helicopters Caliper braking system for aircraft landing gear having a plurality of brake disk clamping zones

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR3082255B1 (fr) 2018-06-12 2020-05-22 Airbus Helicopters Systeme de freinage a disque et aeronef
FR3094430B1 (fr) 2019-03-28 2021-04-02 Airbus Helicopters Disque de frein, système de freinage à disque et véhicule
FR3102963B1 (fr) 2019-11-07 2021-11-12 Safran Landing Systems Procédé de freinage d’aéronef, comprenant une correction dynamique de la commande de freinage

Citations (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2586518A (en) * 1948-09-11 1952-02-19 Wingfoot Corp Mechanical aircraft brake
US3170543A (en) * 1962-12-06 1965-02-23 Goodyear Tire & Rubber Delay valve
US3887044A (en) * 1973-03-20 1975-06-03 Itt Spot-type disc brake
US3941216A (en) * 1973-03-20 1976-03-02 Itt Industries, Inc. Brake shoe support for a spot-type disc brake
US4146118A (en) * 1978-02-14 1979-03-27 Zankl Robert H Brake shoe assembly
US4433757A (en) * 1982-03-01 1984-02-28 General Motors Corporation Disc brake lining retainer and wear warning arrangement
US5429215A (en) * 1993-08-13 1995-07-04 King; E. Autry Quick change brake shoe with removable brake shoe pads
US5890566A (en) * 1996-03-25 1999-04-06 Akebono Brake Industry Co., Ltd. Friction pad for disc brake
US6125973A (en) * 1998-12-29 2000-10-03 Irvine; Mark W. Brake pad holder
US6170618B1 (en) * 1991-11-02 2001-01-09 Itt Automotive Europe Gmbh Brake shoe with retaining spring locked against rotation
US20040211630A1 (en) * 2000-07-31 2004-10-28 Wilfried Strauss Disc brake
US6913120B2 (en) * 2003-01-15 2005-07-05 Anstro Manufacturing, Inc. Method of securing a shim to a backing plate and subassembly formed thereby
US20110024244A1 (en) * 2008-04-14 2011-02-03 Tmd Friction Services Gmbh Brake lining having adapter for disc brakes

Patent Citations (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2586518A (en) * 1948-09-11 1952-02-19 Wingfoot Corp Mechanical aircraft brake
US3170543A (en) * 1962-12-06 1965-02-23 Goodyear Tire & Rubber Delay valve
US3887044A (en) * 1973-03-20 1975-06-03 Itt Spot-type disc brake
US3941216A (en) * 1973-03-20 1976-03-02 Itt Industries, Inc. Brake shoe support for a spot-type disc brake
US4146118A (en) * 1978-02-14 1979-03-27 Zankl Robert H Brake shoe assembly
US4433757A (en) * 1982-03-01 1984-02-28 General Motors Corporation Disc brake lining retainer and wear warning arrangement
US6170618B1 (en) * 1991-11-02 2001-01-09 Itt Automotive Europe Gmbh Brake shoe with retaining spring locked against rotation
US5429215A (en) * 1993-08-13 1995-07-04 King; E. Autry Quick change brake shoe with removable brake shoe pads
US5890566A (en) * 1996-03-25 1999-04-06 Akebono Brake Industry Co., Ltd. Friction pad for disc brake
US6125973A (en) * 1998-12-29 2000-10-03 Irvine; Mark W. Brake pad holder
US20040211630A1 (en) * 2000-07-31 2004-10-28 Wilfried Strauss Disc brake
US6913120B2 (en) * 2003-01-15 2005-07-05 Anstro Manufacturing, Inc. Method of securing a shim to a backing plate and subassembly formed thereby
US20110024244A1 (en) * 2008-04-14 2011-02-03 Tmd Friction Services Gmbh Brake lining having adapter for disc brakes

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP3153735A1 (fr) * 2015-10-08 2017-04-12 Israel Aerospace Industries Ltd. Système de frein additionnel
US10288132B2 (en) 2015-10-08 2019-05-14 Israel Aerospace Industries Ltd. Add-on brake system
US11035426B2 (en) 2018-06-12 2021-06-15 Airbus Helicopters Caliper braking system for aircraft landing gear having a plurality of brake disk clamping zones

Also Published As

Publication number Publication date
EP2816251A1 (fr) 2014-12-24
FR3007096A1 (fr) 2014-12-19
FR3007096B1 (fr) 2016-09-23
EP2816251B1 (fr) 2020-06-03

Similar Documents

Publication Publication Date Title
US20140367209A1 (en) Wheel brake for an aircraft, in particular for a helicopter
US9476470B2 (en) Electro-mechanical brake
US9896112B2 (en) Brake apparatus
US9815484B2 (en) Brake apparatus
US9932051B2 (en) Brake apparatus
US9360063B2 (en) Method for the reconditioning and use of brake discs of the rear stator type with studs, assembled disc and corresponding stack of discs
JP6346310B2 (ja) ディスクブレーキ、ブレーキキャリパおよびディスクブレーキ用ブレーキパッドセット
EP2789871B1 (fr) Frein à disque pour bicyclette
US11624414B2 (en) Disc brake with a tensioning device arranged therein and supporting roller for the tensioning device
CN108779818A (zh) 盘式制动器
JP2016102573A5 (fr)
EP1892433A2 (fr) Agencement de montage d'actionneur de frein à disque
EP2349616B1 (fr) Connecteur rotatif destiné à une tige ou un axe rotatif
CN107002787A (zh) 盘式制动器装置
CN103443496A (zh) 用于对弹簧施压制动器进行开关状态监控的改进的装置
US9982731B2 (en) Disc brake apparatus
KR102060340B1 (ko) 커플링 장치
US11035426B2 (en) Caliper braking system for aircraft landing gear having a plurality of brake disk clamping zones
KR101427078B1 (ko) 자동차용 기계식 드럼브레이크
US10851858B2 (en) Vehicle disc brake
WO2015040652A1 (fr) Dispositif de frein à disque
CN106687708A (zh) 轴法兰与制动器支架
JP2014141983A (ja) 電動式ディスクブレーキ装置の組付方法
CN110914568A (zh) 旋转轴的制动装置
WO2020196564A1 (fr) Frein pour véhicule

Legal Events

Date Code Title Description
AS Assignment

Owner name: MESSIER-BUGATTI-DOWTY, FRANCE

Free format text: ASSIGNMENT OF ASSIGNORS INTEREST;ASSIGNORS:DELAYRE, XAVIER;HARDY, JEREMY;REEL/FRAME:033972/0945

Effective date: 20140613

STCB Information on status: application discontinuation

Free format text: ABANDONED -- FAILURE TO RESPOND TO AN OFFICE ACTION